TE Connectivity 1-644886-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-644886-5 is a rectangular connector header classified as a vertical through-hole mount component with 15 positions at 0.100" (2.54mm) pitch. This connector is part of the MTA-100 series and features unshrouded male pin contacts with kinked pin solder termination. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for board-to-cable and board-to-board applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	15
Number of Rows	1
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Shrouding	Unshrouded
Contact Shape	Square
Insulation Height	0.100" (2.54mm)
Material Flammability Rating	UL94 V-0
Operating Temperature Range	-55°C ~ 105°C
Voltage Rating	250VAC
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1-644886-5 is determined by the following critical parameters that must remain constant across equivalent parts:

Fixed Compatibility Parameters:

15 positions, single row configuration
0.100" (2.54mm) mating pitch
Unshrouded male pin header
Through-hole mounting
Square contact geometry
0.100" (2.54mm) insulation height
UL94 V-0 flammability rating
Moisture Sensitivity Level 1

Acceptable Variation Parameters:

Contact length dimensions (mating and post lengths vary by design variant)
Overall contact length (varies with contact length specifications)
Contact finish material (gold or tin acceptable)
Contact finish thickness (varies by specification code)
Contact material (phosphor bronze acceptable as equivalent to copper alloy)
Insulation color (natural or black acceptable)
Operating temperature range (substitute range may exceed original)
Current rating specification (substitute parts specify 3A per contact)
Termination method (solder acceptable for kinked pin solder)
Fastening type (push-pull acceptable for unshrouded headers)

All identified substitute parts are from the Amphenol ICC (FCI) BERGSTIK® series and maintain the core electrical and mechanical interface requirements for direct substitution in applications originally designed for the TE Connectivity MTA-100 series connector.

Parameter Comparison

Parameter	1-644886-5	77311-122-15LF	77311-124-15LF	77311-127-15LF	77311-424-15LF	77311-427-15LF	77311-822-15LF	77311-824-15LF	77311-827-15LF
Manufacturer	TE Connectivity	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	MTA-100	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®	BERGSTIK®
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
Number of Positions	15	15	15	15	15	15	15	15	15
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature Range	-55°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
RoHS Status	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Contact Length - Mating	0.295" (7.49mm)	0.305" (7.75mm)	0.266" (6.75mm)	0.260" (6.60mm)	0.266" (6.75mm)	0.260" (6.60mm)	0.305" (7.75mm)	0.266" (6.75mm)	0.260" (6.60mm)
Contact Length - Post	0.110" (2.79mm)	0.120" (3.05mm)	0.114" (2.90mm)	0.105" (2.67mm)	0.114" (2.90mm)	0.105" (2.67mm)	0.120" (3.05mm)	0.114" (2.90mm)	0.105" (2.67mm)
Overall Contact Length	0.505" (12.83mm)	0.525" (13.34mm)	0.480" (12.19mm)	0.465" (11.81mm)	0.480" (12.19mm)	0.465" (11.81mm)	0.525" (13.34mm)	0.480" (12.19mm)	0.465" (11.81mm)
Contact Material	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Gold	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™	Tin	Tin	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	78.7µin (2.00µm)	78.7µin (2.00µm)	15.0µin (0.38µm)	15.0µin (0.38µm)	15.0µin (0.38µm)
Insulation Material	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic
Termination	Kinked Pin, Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	—	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Current Rating	Varies by Wire Gauge	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact
ECCN	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

All identified substitute parts from the Amphenol ICC (FCI) BERGSTIK® series are active products with current manufacturing status, providing supply chain continuity for applications currently using the obsolete TE Connectivity 1-644886-5.

Compliance and Certification Alignment:

All substitute parts maintain UL94 V-0 flammability rating and Moisture Sensitivity Level 1 classification, ensuring compliance with the original part's environmental and safety specifications. All substitute parts are RoHS compliant, meeting current regulatory requirements. The substitute parts operate across an extended temperature range (-65°C ~ 125°C) compared to the original part (-55°C ~ 105°C), providing enhanced thermal performance margin.

Contact Length Variants:

The BERGSTIK® series offers three distinct contact length configurations:

77311-122-15LF and 77311-822-15LF: Mating contact length 0.305" (7.75mm), post length 0.120" (3.05mm), overall length 0.525" (13.34mm)
77311-124-15LF and 77311-424-15LF and 77311-824-15LF: Mating contact length 0.266" (6.75mm), post length 0.114" (2.90mm), overall length 0.480" (12.19mm)
77311-127-15LF and 77311-427-15LF and 77311-827-15LF: Mating contact length 0.260" (6.60mm), post length 0.105" (2.67mm), overall length 0.465" (11.81mm)

Selection of the appropriate contact length variant depends on the specific mating depth and PCB stack-up requirements of the application. The original part's mating contact length of 0.295" (7.49mm) falls between the 0.305" and 0.266" variants.

Contact Finish Options:

Substitute parts are available with gold or tin contact finishes. Gold-finished variants (77311-122-15LF, 77311-127-15LF, 77311-822-15LF, 77311-824-15LF, 77311-827-15LF) provide corrosion resistance and are suitable for applications requiring long-term reliability. Tin-finished variants (77311-424-15LF, 77311-427-15LF) offer cost optimization for applications where gold plating is not required.

Packaging Considerations:

Substitute parts are available in bag or bulk packaging. Bag packaging (77311-122-15LF, 77311-424-15LF, 77311-427-15LF, 77311-822-15LF, 77311-824-15LF) provides individual unit protection. Bulk packaging (77311-124-15LF, 77311-127-15LF, 77311-827-15LF) is suitable for high-volume manufacturing operations.

Frequently Asked Questions (FAQ)

Q: Can any of the BERGSTIK® substitute parts directly replace the TE Connectivity 1-644886-5 in existing designs?

A: All nine identified BERGSTIK® variants maintain the critical interface parameters: 15 positions, 0.100" (2.54mm) pitch, unshrouded male pin configuration, through-hole mounting, and square contact geometry. Direct substitution is possible from an electrical and mechanical interface perspective. However, the specific contact length variant must be selected based on the application's mating depth and PCB stack-up requirements.

Q: What is the primary difference between the contact length variants?

A: The BERGSTIK® series provides three mating contact length options: 0.305" (7.75mm), 0.266" (6.75mm), and 0.260" (6.60mm). These variants accommodate different mating socket depths and PCB thicknesses. The original TE Connectivity part specifies 0.295" (7.49mm) mating contact length, which is closest to the 0.305" variant but falls between the 0.305" and 0.266" options. Application-specific requirements determine the appropriate selection.

Q: Are there differences in contact finish specifications among the substitute parts?

A: Yes. Substitute parts are available with gold plating at 30.0µin (0.76µm), 15.0µin (0.38µm), or tin plating at 78.7µin (2.00µm). The original part specifies 30.0µin (0.76µm) gold plating. Parts 77311-122-15LF and 77311-822-15LF provide 30.0µin and 15.0µin gold options respectively. Parts 77311-424-15LF and 77311-427-15LF provide tin plating. Contact finish selection depends on corrosion resistance requirements and cost considerations.

Q: What is the significance of the contact material change from copper alloy to phosphor bronze?

A: Phosphor bronze is an established contact material in connector applications, providing superior spring properties and wear resistance compared to copper alloy. This material change enhances contact reliability and mating cycle life. The electrical conductivity and current-carrying capacity remain suitable for the application's requirements.

Q: How do the operating temperature ranges compare?

A: The original TE Connectivity part operates from -55°C to 105°C. All BERGSTIK® substitute parts operate from -65°C to 125°C, providing an extended temperature range. This extended range offers additional thermal margin for applications operating at temperature extremes and is fully backward compatible with the original part's temperature specifications.

Q: What packaging options are available for the substitute parts?

A: Substitute parts are supplied in either bag or bulk packaging. Bag packaging provides individual unit protection and is suitable for lower-volume applications or component kitting. Bulk packaging is optimized for high-volume manufacturing environments where components are used directly from bulk containers.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified BERGSTIK® substitute parts are RoHS compliant, meeting current regulatory requirements for hazardous substance restrictions. The original TE Connectivity part is ROHS3 compliant, and all substitutes maintain or exceed this compliance level.

Q: What is the current rating specification for the substitute parts?

A: All BERGSTIK® substitute parts specify a current rating of 3A per contact. The original part specifies current rating as "varies by wire gauge," which is dependent on the wire gauge of the mated cable. The 3A per contact specification of the substitute parts provides a defined electrical performance parameter suitable for design verification.

Q: Are there any REACH compliance differences between the original and substitute parts?

A: The original TE Connectivity part lists REACH status as "Vendor Undefined." All BERGSTIK® substitute parts list REACH status as "REACH Affected," indicating that these parts are subject to REACH regulations. This status reflects current regulatory compliance and does not indicate any restriction on use.

Q: How should I select between the different BERGSTIK® variants for my application?

A: Selection should be based on three primary criteria: (1) Contact length variant must accommodate the mating socket depth and PCB stack-up of the application; (2) Contact finish should be selected based on corrosion resistance requirements and cost considerations; (3) Packaging format should align with manufacturing volume and component handling processes. Consult application-specific design documentation to determine the appropriate contact length variant.

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